Thick ice grew on Michigan's Great Lakes over the weekend, Feb. 1, and more may develop from this week's Arctic air. See the current coverage.

A NASA mission is underway to map the heliosphere, which is a huge protective bubble around the solar system that was created by the sun.

NASA's long-awaited moonshot with astronauts is off until at least March because of leaking hydrogen fuel.

The weekend storm that covered North Carolina with more than a foot of snow in some places caused four unoccupied Buxton ...

Arctic sea ice has large effects on the global climate. By cooling the planet, Arctic ice impacts ocean circulation, ...

Groundhog Day falls on February 2 ( Candlemas Day) and is celebrated in Punxsutawney, Pennsylvania, USA. This tradition ...

The sunspot region 4366 fired off dozens of powerful solar flares in 24 hours, including the single strongest flare since ...